
The GLC-LX-SM-RGD is a Cisco Gigabit Ethernet long-wavelength small form-factor pluggable (SFP) transceiver, designed for single-mode fiber. It’s built for extended reach connections, typically up to 10 kilometers. The “RGD” suffix signifies that it is a ruggedized version, designed to withstand harsh environments. It operates at 1310nm, and is used for Gigabit Ethernet connections.